NYC-WTC_000213019

NYC 9/11 Public Portal Document

1700E(rnS!reet-Sulte200 Minneapolis, MN 55414 tm

^ace Analytical__________ T8l: 612-607-1700 Fsx: 81?- 507-84^4 Method 8290 Analysis Results Client - ATC Clienfs Sample ID ATC-0427-STY-DX4 Lab Sample ID 103513495 Filename F2O524A_13 Injected By MRO Total Amount Extracted 0.65 g Matrix DUST % Moisture NA Dilution NA Dry Weight Extracted NA Collected 04/27/2002 ICAL Date 05/04/2002 Received 05/01/2002 CCal Filename(s) F2O524A_O1 & F20524A_15 Extracted 05/20/2002 Method Blank ID BLANK-1633 Analyzed 05/24/2002 1 9:05 Native Cone EMPC LRL Internal ng’s Percent Isomers ng/Kg ng/Kg ng/Kg Standards Added Recovery 2,3,7,8-TCDF — 38 3.10 E 2,3.7,8-TCDF-13C 2.00 76 Total TCDF 640.0 3.10 2,3,7,8-TCDD-13C 2.00 74 1.2,3,7,8-PeCDF-13C 2.00 72 2,3,7,8-TCDD 7.2 3.10 J 2.3,4,7.8.PeCDF-13C 2.00 75 Total TCDD 800.0 3.10 1,2,3,7,8-PeCDD-13C 2.00 81 1.2,3,4,7,8-HxCDF-13C 2.00 61 1,2,3,7.8-PeCDF 36.0 15.00 J 1,2,3.6,7,8-HXCDF-13C 2.00 64 2,3.4,7,8-PeCDF 60.0 15.00 J 2,3,4,6.7.8-HXCDF-13C 2.00 83 Total PeCDF 410.0 15.00 1,2,3,7,8,9-HXCDF-13C 2.00 53 1,2.3.4.7,8-HxCDD-13C 2.00 100 1,2,3,7,8.PeCDD 20 15.00 I 1,2,3,6,7,8-HxCDD-13C 2.00 91 Total PeCDD 280.0 15.00 1,2,3,4,6,7,8-HpCDF-13C 2.00 63 1,2,3.4.7.8,9-HpCDF-13C 2.00 37 IP 1.2,3.4,7,8-HxCDF 49.0 15.00 J 1,2.3,4,6,7.8-HpCDD-13C 2.00 54 1,2,3.6,7.8.HxCDF 75 15,00 E OCDD-13C 4.00 47 2,3,4,6,7,8-HxCDF 66.0 15.00 J 1.2,3,7,8.9-HxCDF ND 15.00 1.2.3,4-TCDD-13C 2.00 NA Total HxCDF 660.0 15.00 1,2,3,7,8.9-HxCDD-13C 2.00 NA 1,2,3.4,7,8-HxCDD 23.0 15.00 J 2,3,7,8-TCDD-37CI4 0.20 79 1,2,3,6,7.8-HxCDD 53.0 15.00 J 1,2,3.7,8,9-HxCDD 37.0 15.00 J Total HxCDD 830.0 15.00 1.2,3,4,6,7,8-HpCDF 350.0 15.00 Total 2.3,7,8-TCDD 1.2,3,4,7,S.9-HpCDF ND 34.00 A Equivalence; 76 ng/Kg Total HpCDF 350.0 15.00 (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD 570.0 15.00 Total HpCDD 850.0 15.00 OCDF 420.0 31.00 OCDD 4400.0 31.00 Results reponed on a total weight basis LRL ~ Lower Reporting Limit Cone c Concontmtion (Tottis include 2,3,7,8-suOstituted isomers) I = Intarlerenca EMPC V Estimatsd Maximum Pocsibla Concentration E = PCDE Interference A s detection Limit baaed on slanal-to-noieo measuremam S = Saturated signal J B Concentration detected is below the calibration range ND » Not Detected 6 a Less than to times nighar than method blank level NA = Not Applicable P X Recovery outside of target range NC = Not Calculated Nn B Value obtained from additional analysis * = See Dlscusaior. Report No.... 02-1057132

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except In full, without the written consent of Pace Analytical Services, Inc.

CITY_21MC100_002867943

NYC-WTC_000213022